I can see this dilemma unfolding in the near future...
Say one finds a relatively rare model E36 that has had multiple owners and no paper trail and no way to find out the bulk of the car's history. However, it has low miles (for the year), looks well maintained, is okay'ed by a trusted local BMW shop and can be purchased at a fair (non-gouged) price.
Speaking from your personal experience, would YOU buy a car found is such a state? :dunno: